CN1540753A

CN1540753A - Core of heat exchanger in shaped plate pterate type

Info

Publication number: CN1540753A
Application number: CNA2003101083268A
Authority: CN
Inventors: 朱辰元; 薛飞; 陈国强; 汪海贵
Original assignee: Shanghai MicroPowers Co Ltd
Current assignee: Shanghai MicroPowers Co Ltd
Priority date: 2003-10-31
Filing date: 2003-10-31
Publication date: 2004-10-27
Anticipated expiration: 2023-10-31
Also published as: CN1303393C

Abstract

Core of heat exchanger is composed of superimposed flow passage units formed from multiple fins. Characters are that the fin is a discoid body with four nicks on its circumference side face. There is an excavated plane between two adjacent nicks, and raised plane between other two adjacent nicks on the discoid body. Each raised plane on pan bottom is connected to excavated plane on pan bottom of previous piece of fin through braze welding. Circumference side face of a piece of fin covering outside of circumference side face of previous piece of fin are connected to each other through braze welding. The invention solves issues of difficult to weld too many parts on the core along lines, mutual flow between cold fluid and heat fluid, and simple shape.

Description

Sketch plate fin heat exchanger fuse

Technical field:

The invention relates to heat exchange, particularly about finned plate heat exchanger.

Background technology:

Finned plate heat exchanger is a kind of common heat exchanger structure, it except parts such as manifold, adapter and bearing, its critical component that mainly carries out heat exchange be one superimposed and carry out the fuse that soldering forms one by a series of flow passage units.And each flow passage unit all is to be formed by the fin that is clipped between two dividing plates; And seal with metal seals the both sides of flow passage unit, and both sides can be provided with flow deflector as required in addition, also can seal with strip of paper used for sealing after leaving channel passage.All connect between the fin of flow passage unit, dividing plate, the strip of paper used for sealing with soldering.Because fin, dividing plate, strip of paper used for sealing are formed by the thick foil of 0.1～0.6mm, so the contact area of seam is very little between them, is the combination of line and face basically, not only is difficult to welding, and causes cold fluid and hot fluid to be scurried mutually easily.Simultaneously, fin can only folk prescription to combination, and existing all kinds of fin can not change angle, each flow passage unit is a cuboid, the fuse that is formed by stacking thus also can only have a kind of tetragonal body form, has limited to its range of application.

Summary of the invention:

The invention reside in provides a kind of sketch plate fin heat exchanger fuse, solves that existing finned plate heat exchanger part is many, line welds difficulty with face, and the technical problem of cold fluid and hot fluid channelling easily takes place, and the single technical problem of shape.

The technical scheme that the present invention solves the problems of the technologies described above is as follows:

A kind of sketch plate fin heat exchanger fuse, the superimposed composition of flow passage unit that forms by numerous fins, it is characterized in that: this fin is the discoid body that peripheral side is provided with four breach, this discoid body try to get to the heart of a matter that wherein two tactic indentation, there are respectively arranged with recessed plane, corresponding two indentation, there in addition are respectively arranged with convex plane in correspondence, the convex plane that each fin is tried to get to the heart of a matter is connected with soldering with the recessed plane that a last fin is tried to get to the heart of a matter, its peripheral side is enclosed within outside the peripheral side of a fin, and connects with soldering.

Above-mentioned sketch plate fin heat exchanger fuse is characterized in that: the recessed plane of trying to get to the heart of a matter of this fin and convex plane can extend to another indentation, there from a breach respectively always.

Above-mentioned sketch plate fin heat exchanger fuse is characterized in that: the recessed plane and the convex plane of this fin are 0～45 ° angle.

Above-mentioned sketch plate fin heat exchanger fuse is characterized in that: the punching out of trying to get to the heart of a matter of this fin has the honeycomb projection.

Be face between the fin of the present invention with face between engage, not only be easy to welding, intensity height, and can not give vent between each flow passage unit and leak and cause scurrying mutually of cold fluid and hot fluid.The depression plane and the convex plane of fin are 0～45 ° angle simultaneously, as long as the numerical value of this angle of change can obtain the special-shaped heat exchanger fuse of different shapes such as straight line, annular, polygon, to be fit to the needs of various different occasions.In addition, the present invention only uses a kind of part of fin superimposed, has greatly simplified the kind of part; And its compact conformation, simple, be fit to large-scale production, be convenient to make, reduce man-hour and cost.

Description of drawings:

Fig. 1 is a fin structure schematic diagram of the present invention.

Fig. 2 is another fin structure schematic diagram of the present invention.

The flow passage unit structural representation that Fig. 3 is made up of fin.

Fig. 4～Fig. 6 is several structural representation of the present invention.

Embodiment:

The present invention is fin 1 superimposed being welded by Fig. 1.Fin 1 is a discoid body of being made by the sheet metal punching press, side 11 around this discoid body is provided with four breach 14, its try to get to the heart of a matter 13 therein two continuously arranged breach 14 places be provided with a recessed plane 12 of extending continuously, be provided with a convex plane 15 of extending continuously at other two continuously arranged breach 14 places.The present invention can also have another kind of fin 1 ' structure as shown in Figure 2.This fin 1 ' is that with above-mentioned fin 1 main distinction its 13 recessed planes 12 ' that are positioned at two breach 14a places of trying to get to the heart of a matter are not communicated with each other mutually, and being positioned in addition, the protrusion plane 15 ' at two breach 14b places is not communicated with too mutually.

The heat exchanger fuse 3 that Fig. 3 is formed by stacking for the flow passage unit of being made up of fin 12 and 2 '.The convex plane 15 of fin 1 is folded mutually by using the soldering seam together with the recessed plane of a last fin 1a 12, side 11 around the fin 1 then is linked in outside the respective side 11 of a fin 1a, and with soldering welding, thereby this fin 1 with on flow passage unit 2 of formation between the fin 1a with sealing of two breach 14a.12 convex plane 15 with next fin 1b in the recessed plane of this fin 1 are folded each other by welding with soldering, side 11 around it is linked in again in next fin 1b side 11 on every side, and use the soldering seam, thereby between this fin 1 and next fin 1b, form a flow passage unit 2 ' with sealing of two breach 14b.Runner 2 and the continuous arrangement of 2 ' each interval have then formed required heat exchanger fuse 3.Fig. 4 and Fig. 5 then are respectively by the linear heat exchanger fuse 3 of the fin 1 and 1 ' the superimposed welding.On heat exchanger fuse 3, then formed respectively and arranged the cold fluid and hot fluid access way separately that forms continuously by two breach 14a and two breach 14b.The recessed plane 12 of fin 1 and convex plane 15 can have 0～45 ° angle α, change the heat exchanger fuse that angle α can obtain different shape, and wherein most typical is a kind of circular heat exchanger fuse 3 ' as shown in Figure 6.

Can also be provided with some cellular projectioies trying to get to the heart of a matter of fin 1 on 13, this projection can make the 13 increase rigidity of trying to get to the heart of a matter, make the fin 1 on flow passage unit 2/2 ' both sides keep certain spacing distance, also can in flow passage unit 2/2 ', make the flow process of cold fluid and hot fluid elongated simultaneously, increase heat exchange coefficient, improve heat conduction efficiency.

Claims

1, a kind of sketch plate fin heat exchanger fuse, the superimposed composition of flow passage unit that forms by numerous fins, it is characterized in that: this fin is the discoid body that peripheral side is provided with four breach, this discoid body try to get to the heart of a matter that wherein two tactic indentation, there are respectively arranged with recessed plane, corresponding two indentation, there in addition are respectively arranged with convex plane in correspondence, the convex plane that each fin is tried to get to the heart of a matter is connected with soldering with the recessed plane that a last fin is tried to get to the heart of a matter, its peripheral side is enclosed within outside the peripheral side of a fin, and connects with soldering.

2, sketch plate fin heat exchanger fuse according to claim 1 is characterized in that: the recessed plane of trying to get to the heart of a matter of this fin and convex plane can extend to another indentation, there from a breach respectively always.

3, sketch plate fin heat exchanger fuse according to claim 1 is characterized in that: the depression plane and the convex plane of this fin are 0～45 ° angle.

4, sketch plate fin heat exchanger fuse according to claim 2 is characterized in that: the depression plane and the convex plane of this fin are 0～45 ° angle.

5, according to claim 1,2,3 or 4 described sketch plate fin heat exchanger fuses, it is characterized in that: the punching out of trying to get to the heart of a matter of this fin has the honeycomb projection.